Identify the correct sentence.

• After যুক্ত বাক্যের গঠন- 
- Sub + past indefinite + after + sub + past perfect tense + object.
- The team celebrated after they had won the championship.
- এখানে after -এর পর  past perfect tense এবং এর আগে past indefinite বসেছে)

• নিয়মানুযায়ী সঠিক উত্তর টি হচ্ছে - The children played outside after they had completed their homework.

অপরদিকে,
• before যুক্ত বাক্যের গঠন-
- Sub + past perfect + before + past indefinite.
- She had already completed her work before the meeting started.
- (এখানে before-এর আগে past perfect tense এবং এর পরে past indefinite বসেছে)।